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Print CompleteA. NEVER ATTEMPT TO PATCH OR REPAIR A DRAG SLICK. NEVER USE A DRAG SLICK THAT HAS BEEN REPAIRED. FAILURE TO FOLLOW THIS ADVICE MAY RESULT IN CATASTROPHIC FAILURE OF THE TIRE AND COULD LEAD TO SERIOUS INJURIES OR DEATH.
A: NEVER APPLY ANY TYPE OF CHEMICAL OR TIRE DRESSING TO THE TIRES. Tread softening or any other type of chemical applied to the tires can affect the integrity of the tire. FAILURE TO FOLLOW THIS ADVICE MAY RESULT IN CATASTROPHIC FAILURE OF THE TIRE AND COULD LEAD TO SERIOUS INJURIES OR DEATH.
A. This X pattern appears where the two ends of the bias body plies join together. This joint creates a strong point in the tire that leads to the X pattern on the slick contact surface.
A. This depends on type of racing and vehicle the tire is used for. In certain sportsman classes, racers have completed over 150 passes on one set. High horsepower and heavier vehicles tend to more quickly wear out the slicks. Inconsistent 60' time is an indicator that the slick is "worn out", even before the tread depth indicators are gone. The tread depth indicators are 'dimple' cavities on the tread surface that help monitor wear. Tread depths vary by size, please refer to the Tech Specs on the Size & Specs tab of this product page for details. The tire is considered to be worn out as soon as the indicator depth is zero. Constantly monitor tread depth. Immediately discontinue use if any of the cord material becomes visible.
A. As a general guideline, we recommend no change in your burn out procedure. However, for the very first run, we recommend a burn out that is slightly longer than normal. Usually on a cold track in colder ambient temperatures we recommend a longer burnout, and conversely, a shorter burnout in hotter conditions.
A. Either type is acceptable. If you are currently not using either type, it is recommended that you mark the tire and wheel with a chalk line to check for slippage. Bead lock is more commonly used on 16" wheels, or vehicles capable of more than 190 MPH in the ¼ mile.
A. This is where the two ends of the bias body plies join. This joint creates a strong point in the sidewall. After the tire is inflated, the stronger joint resists inflation, creating the appearance of the indentation.
A. Depends on the size and weight of the vehicle. The following is a general guideline for starting pressures:
- 33x16, 33x17, 32x14.5: 6psi
- 28x9, 29x9 and 30x9: 12psi
- 25x9, 26x9: RWD 10psi, FWD 6psi
- Free Rolling recommended tire air pressure: 40psi
Adjust the tire air pressure up or down in 1/8 to 1/4 PSI increments to achieve the desired results. Use as much tire air pressure as possible for the track condition without causing the tire to slip. As a general rule, lower the pressure to increase traction, and increase the pressure to improve reaction time, stability, and rolling resistance. We do not recommend using tire air pressure of less than 5psi, as stability will be severely compromised.
A radial passenger tire design for the street has an "inner liner" to hold air for daily use. A bias drag slick is designed without such inner liner to reduce weight; which means that for bias drag slicks, tire air pressure must be checked before each pass.
A. No, the slick was designed to function without a tube.
A. The difference in rollout between the left and right slick should not measure more than ¾". A difference in rollout can cause the vehicle to pull. Inflate the smaller slick to about one-inch larger than the desired rollout and let it sit for a short period of time. Do not exceed 35 PSI. Deflate the tire to the desired pressure and re-measure.
A. Because of the nature of its construction, bias ply tires have a circumference (rollout) that varies from tire to tire. At the factory the tire is inflated to a set pressure and the rollout is then measured. The rollout will help in deciding which tire best suits your needs.
A. We recommend dynamic balance in high-speed applications, however, because the tire changes shape as you race, no method can guarantee balance.
A: ONLY trained professionals with proper tools should mount and dismount the drag slick. Failure to do so may cause tire damage that could lead to a tire failure and result in an accident, injury or death. Always check the tire and rim prior to mounting as damage could have occurred during shipping and storage. NEVER exceed tire air pressure of 35 PSI in the drive slick or 40 PSI in the free rolling.
A. No. However, a new set should always be mounted as follows:
- Right tire: serial is mounted inside
- Left tire: serial mounted out
After a few passes the tires can be swapped side-to-side. Rotating every few passes will clean the tread surface of the feathering and balling up of the rubber on the surface.
A. No, the tires are designed solely for racing purposes and are not tested or labeled to meet FMVSS 109 or ECE30 Safety Standards for use on the street. IT IS ILLEGAL TO USE THESE TIRES ON PUBLIC ROADS.
A. Currently we offer only one compound for each size. We have found that this compound works in hot and cold race conditions.
A. The tire at ambient temperature is not an indication of how well the compound will work. This is one of the reasons to do a burn out. Building heat in the tread will soften the rubber for maximum traction.
